Apparatus for making carbureted water gas



Feb. 2l, 1933.

C. S. CH RISMAN APPARATUS FOR MAKING CARBURETED WATER GAS Filed DeC. l0 192 2 Sheets-Sheet l Feb. 2l, 1933. C K5 CHRlsMAN 1,898,575

APPARATUS FOR MAKING CARBURETED WATER GAS Filed Dec.A 10, 1926 2 Sheets-Sheetl 2 FVG. 3.

W gwn #fram/EK Patented Feb. i 21, 1933 UNITED STATES PATENTorificiei7i,

CHARLES S. CHRISMAN, OF WEST CHESTER, PENNSYLVANIA, ASSIGNOR T0 THE U. G. I.

CONTRACTING COMPANY, OF PHILADELPHIAPENNSYLVAN IA, A CORPORATION OF DELAWA BE APPARATUS ron MAKING CARBURETED WATER eas Appiieation mea December 1o, 1926. `seran' No. 153,753.

` 5 in the ash at the base of the fuel bed, and it "is one obj ect of the present invention to provide for satisfactorily recovering the heat in the carbureted water gas, thus completing the practical recuperation of the sensible heat in all the gases. Other objects of the invention are to provide for discharging only coal gases from the set, to reduce the burden on the condensing apparatus, to cool the gas before passing to the valve at the wash boX, and to save generator A fuel. v

A Other objects of the invention will appear from the following description but, gener- 2 ally stated, the invention consists inthe provision of apparatus for receiving, storing and subsequently giving up heat and hereinafter referred to as a regenerator lled with suitable heat absorbing material 2r and placed at the gas outlet of the supero heater of a carbureted Water gas set in such a way that carbureted water gas issuing from the superheater passes through it, storing the sensible heat, and .cooling the carbureted water gas prior to its entrance into the wash boX along with the provision of the necessary valves and piping for using the stored heat to preheat air supplied to the set, Vor to superheat or generatesteain 35'for down steaming, or, in short, for heating -gas making uids.

4 The invention also comprises the improvements to be presentlyfdescribed and finally claimed.

In' the following description reference will be made to the accompanying drawings forming part hereof and in which A Figure l is a side view, partly in section, of a carbureted Water gas set in which the dowiikrunl gas is led directly to the wash box and which embodies features of the invention.'

Fig. 2 is a top or plan View of thesame. Fig. 3 is a side view of parts of a carbureted water gas set in which bcthy, up and down water gas runs go through the carbureter and which embodies features of the invention, and i Fig. 4 is a sideview, partly in section, of parts of a carbureted water gas set showing features of the invention in a regenerator illed with checkerbrick instead of clinker or loose v'pieces of heat absorptive inaterial'- as shown in Fig. 1.

A water gas set usually includes a water gas generator 1, a carbureter 2, a superheater 3 having a stack valve 33 thereon, a wash box 4, a wastefheatlv boilerv v5, a stack 6, an air supply 7 to the generator 1 controlled by valve 77, and a steam supply 8 controlled by valve 88 to the base of the generator. In some cases there is also included a steam supply/9 controlled by valve 99 to the top of the generator l and in all cases the ves'- sels referred to are interconnected as will be hereinafter described. There is nothing particularly newv about the carbureted water gas set of which parts have been indicated above. Referring to Fig. 1, the fuel bed in the generator lis air blasted from the bottoni 7, the blast gas passes by 10 vto the top of the carbureter 2, from Ythe bottom of the carbureter by 11 tothe bottom of the superheater 3, by 12 from the top of the superheater to the top of the boiler 5, and from the bottom of the boiler to the stack 6, and secondary air is introduced at 13 and controlled by valve 113. The boiler conserves the sensible heat of the air blast gases. Thisvoperation is called a blow or blast. The ,operation of making water gas in the generator is called the run, and it is referred to as either an up or a down run. During the down run the stack 6 is closed, steam is admitted at 9, and the Water gas generated in the generator 1, after passing through the clinker at `the bottom ofthe fuel bed in the generator and imparting much of its sensible heat thereto, passes by 14 to the wash box 4, from whichit goes -by the pipe 15 to storage for use.- During the -up run Iwhich is alternated with the down run and with the air blast as good practice may dictate, steam is introduced at 8, water gas generated in the generator passes by 10 to the top of the carbureter in which it is carbureted by oil or the like introduced at 16, controlled by valve 116, and then by 11, through the superheater .3 which it leaves by the carbureted water gas outlet 17 controlled by valve 117. It is at this point or stage that the present invention Ais applied. 18 is a regenerator illed with suitable heat absorbing material shown as clinker 19 arranged on a shaking grate 20. The carburetedwater gas passes through the regenerator 18 andthrough the heat absorbing material therein to which it imparts much of its sensible vheat and deposits some entrained carbon particles, andv `the comparativelycooled carbureted water gas passes from 18 by 21 to the wash boX 4. 'Fromthe wash box the cOol carbureted water gas passes by 15 to the condensing apparatus, not shown, and for storage or use. The clinker in the regenerator 18 presents a large surface for its volume and therefore the regenerator may be comparatively small. The shaking grate 20 is a means for agitatingr the clinker to prevent it from being clogged. A depth of three or four feet of clinker may reduce the temperature of the hot carbureted water gas to approximately 500 F. The permissible reduction of tempera-ture depends upon the temperature at which tar condenses from the gas. The regenerator besides removing and storing a large part ofthe sensible heat in the carbureted water gas reduces the burden on the condensing .apparatus and also protects the reversing valve 21 from being subjected to excessive heat.

Piping is provided by means of which the heat stored in the regenerator is used for heating gas making fluids and thus returningthe heat'recovered from the carbureted Awater gas to the set. Air may be introduced at 22 controlled by valve 122, heated in the regenerator and passed by the connection 23 controlled by valve 123 to the generator inlet 7 and to the secondaryl air supply 13 during the blast, and steam Vfor the down run may be introduced at 24 controlled by valve 124, superheated in the regenerator, land passed by 23 and 13 to the top of the generator and in that case the steam supply 9 need not be availed of. By introducing water at 25 controlled by valve 125 into the 'regenerator steam may be generated therein and used in the manner described lfor the ldown run.

The construction and inode of operation ofthe arrangement shown in Fig. 3, which may be regarded as a modification, are as above described except as follows:

Both the up and down run water gas is `passed through the carbureter and superheater and thence through the regenerator 18 65 to the wash box.l For this purpose the down vio as somewhat larger.

run water gas is passed from the bottom of the generator by 26 controlled by valve 126 to the top of the carbureter.

In this arrangement air for the blast is preheated in its passage through the regenerator in tlie'manner described.

The steam and water connections for the rim are omitted from the regenerator 18 and the stored heat is returned to the set by preheatingthe air for the blasting step.

In the modification shown in Fig. 4 the construction and mode of operation are as has 'been above described except that the regenerator 18a is internally supplied with heat absorptive material in the form of checker brick and forthat reason is shown From the foregoing description of the piping and of the mode of operation it is believed that the valves conventionally in-i" dicated in the various figures ofthe drawings will be understood both as to location and manipulation; therefore a detail description will not be given of them, and after all a water gas set and its operation arefo thoroughly understood and in this description reference has not been` made to certain perfectly well understood steps usually designated as purging with steam.

The described apparatus is capable of,5 use in connection with gaseous fluids in another part of the set, namely, the boiler. During the air-blast or blowthe blast gas entering the boiler 5, Fig. 1, may for Ypurposes ofy combustion be supplied with air'00 heated in the regenerator. For this purpose air may be introduced at 22, heated in 18, and delivered by 17, to the blast gas, the valves in 23 and 13 being closed.

It will be obvious to those skilled in thel art to which the invention relates that modiications may be made in details of construction and arrangement and in matters of mere form without departing from the spirit of the invention which is not limited to such matters or otherwise than the prior art and the appended claims may require.

I claim:

1. A carbureted water gasset including a generator, a carburetor, a Vsuperheater and a washboX, and two conduits for gas leading olf from the superheater, one conduit intended for blast gases including a waste heat boiler and a stack, and the other intended for carbureted water gas including v a regenerator connected between the superheater and the washbox and adapted to store sensible heat of the carbureted water gas with valves, and connections for introducing air through the regenerator on the way to the set. c

2. A carbureted water gas set including a generator, a carbureter, a superheater, a washbox, a conduit leading off from the superheaterk and intended for blast gases,

a Waste heat boiler in said conduit, a stack in said conduit, means for leading uprun carbureted water gas from said superheater directly to said Washbox, a regenerator in said first mentioned means and adapted to store the sensible heat of the carbureted water gas therein, and means for introducing a gas making fluid or fluids to said set through said regenerator.

3. A carbureted Water gas set, including 'a Water gas generator having air and steam inlets, a carbureter, a superheater, and a wash box; a conduit leading from the superheater to a Waste heat steam boiler, a second conduit leading from the superheater directly to a regenerator containing loose refractory material therein, a conduit leading from the regenerator to the Wash box, means for passing air blast gas from the superheater through the Waste heat boiler Without passing through .the regenerator,n1eans for passing carbureted Water gas from the superheater through the regenerator With-` out passing through the Waste heat boiler, means for passing air through the regenerator for burning any combustible deposits therein and preheating the air, means Jfor passing the preheated air into the set, and a shaking grate adapted to support the loose refractory material in the regenerator.

4c. A carbureted Water gas set including a generator and a carbureter and a superheater and a Wash-box and a Waste heat boiler and a stack for the superheater, and two conduits for gas leading from the superheater, one conduit intended for leading blast gases to the boiler and stack, and the other conduit intended for carbureted Water gas and including a regenerator connected between the superheater and the Wash-box and adapted to store sensible heat of the carbureted Water gas, and valves and connections for introducing air through the regenerator on the way to the set.

CHARLES S. CHRISMAN. 

